HD293486
HD293486 is Quadruple Dfferential Line Receivers With 3 State Outputs manufactured by Hitachi Semiconductor.
features quadruple Differential line receivers designed to meet the specs of EIA RS- 422A and RS- 423A. This device operates from a single 5 V power supply. When the enable input is low the associated outputs are in a high impedance state.
Pin Arrangement
1B 1A 1Y 1,2 Output Enable 2Y 1 2 3 4 5 6 7 8 (Top View) 16 15 14 13 12 11 10 9 Vcc 4B 4A 4Y 3,4 Output Enable 3Y 3A 3B
Logic Diagram
1A 1Y 1B 1,2 Output Enable 2A 2Y 2B 3A 3B 3,4 Output Enable 4A 4Y 4B 3Y
2A 2B GND
Function Table
Differential Input A- B VID ≥ 0.2 V
- 0.2 V < VID < 0.2 V VID ≤
- 0.2 V X H L X ? Z : : : : : High level Low level Irrelevant Indeterminate High Impedance Output Enable H H H L Output Y H ? L Z
Absolute Maximum Ratings
Item Supply Voltage A , B Input Voltage Differential Input Voltage Enable Input Voltage Output Current Power Dissipation Symbol VCC
- 2 VIN VID VIE IOL PT
- 1
- 3
Ratings 7.0 ±15.0 ±25.0 7.0 50 DP FP 1000 785 0 to +70
- 65 to +150 °C °C Unit V V V V m A m W
Operating Temperature Storage Temperature
Topr Tstg
Notes: 1. The above data were taken by the ∆VEB method mounting on a glass epoxy board (40 × 40 × 1.6 mm) of 10 % wiring density. 2. All voltage values except for differential input voltage are with respect to ground terminal. 3. Differential input voltage is measured at the noninverting input with respect to the corresponding inverting input. 4. The absolute maximum ratings are values which must not individually be exceeded, and furthemore, no two of which may be realized at the same time.
Remended Operating Conditions
Item Supply Voltage In Phase Input Voltage Differential Input Voltage Output Current Operating Temperature Symbol VCC VIC VID IOH IOL Topr 0 Min 4.75 Typ 5.00 Max 5.25 ±7 ±6
- 0.4 8.0 70 Unit V V V m A m A °C
Electrical Characteristics (Ta = 0 to +70°C)
Item Differential Input High Threshold Voltage Differential Input Low Threshold Voltage Enable Input Voltage Symbol VTH Conditions Vo = 2.7 V, Io =
- 0.4 m A Min...